Release Notes for Cisco MC3810 for Cisco IOS Release 12.2 XA

February 9, 2002

Cisco IOS Release 12.2(2) XA5

78-12725-01 Rev. D0

These release notes for the Cisco MC3810 series support Cisco IOS Release 12.2(2) XA5. These release notes are updated as needed.

For a list of the software caveats that apply to Release 12.2(2) XA5, see the "Caveats for Cisco IOS Release 12.2 XA" section and Caveats for Cisco IOS Release12.2T. This caveats document is updated for every maintenance release and is also located on Cisco.com and the Documentation CD-ROM.

Use these release notes with the Cross-Platform Release Notes for Cisco IOS Release 12.2 T located on Cisco.com and the Documentation CD-ROM.

Introduction

The Cisco MC3810 multiservice access concentrator is fully supported by Cisco IOS software for multiprotocol routing, bridging, and Systems Network Architecture (SNA). As part of an enterprise backbone or as a CPE device to serve provider-managed network services, the Cisco MC3810 reduces operating costs and complexity, and increases network throughput and performance.

The Cisco MC3810 provides a complete file system for software images, message files, and reports. The standard Flash memory size is 8 MB. A 16-MB upgrade option is available. The 16-MB version can hold two code images simultaneously for fail-safe upgrades.

Management and configuration of the Cisco MC3810 should be familiar to the Cisco IOS user and compatible with existing management systems. As such, it provides a superset of the Cisco command-line interface (CLI). The Cisco MC3810 can be managed by standard Cisco management platforms and facilities such as CiscoView and the native remote login facilities provided by Telnet and rlogin. Three types of configuration interfaces are provided as follows:

Hardware Supported

Cisco IOS Release 12.2(2) XA5 supports the Cisco MC3810 multiservice access concentrator. The Cisco MC3810 base chassis is a semifixed configuration router that can be customized for a specific application at the factory or in the field by a qualified technician. The base chassis includes the following components:

•One fixed Ethernet LAN port

•A console port and an auxiliary port

•Two synchronous serial ports

•Five mounting areas for functional modules that support additional capabilities

•AC, DC, or redundant power supply option

Cisco MC3810 series concentrators are supplied in various standard hardware configurations. These concentrators are equipped with different sets of functional modules to provide specific functional capability. Many configurations are possible, but they are all variations of the basic categories described in Table 2. Supported hardware is shown in Table 3. The chassis opening for any mounting area that is not equipped with a functional module is closed off with a removable cover plate.

1Requires one to six APMs and one voice compression module (VCM3 or VCM6).

2Requires one or two voice compression modules (VCM6) for processed voice.

3Requires one voice compression module (VCM3 or VCM6) and Cisco IOS Release 12.0(4)T or a later release.

4Requires MFT for ATM connectivity and Cisco serial V.35 DCE cable (product order number 72-1721-01) that includes a Ringing Indicator (RI) conductor, and a Cisco EIA/TIA-366 ACE cable (product order number 72-1722-01) to connect the VDM to the videoconferencing equipment RS-366 dialup DTE port.

5For use with analog voice modules; one AVM requires at least one APM and supports up to six APMs.

Features

The Cisco IOS software is packaged in feature sets consisting of software images—depending on the platform. Each feature set contains a specific set of Cisco IOS features.

Cisco IOS Release 12.2(2) XA4 supports the same feature sets as Cisco IOS Release 12.2(2) T, but Cisco IOS Release12.2(2) T can include new features supported by the Cisco MC3810.

Note If you have a Cisco.com login account, you can find image and release information regarding features prior to Cisco IOS Release 12.2(2) T by using the Feature Navigator tool at http://www.cisco.com/go/fn.

Cisco IOS Release 12.2(2) XA4 supports one new feature: Call Admission Control for H.323 VoIP Gateways. This feature is described in the "New and Changed Information" section below and is included in all of the images listed in Table 1.

Caution Cisco IOS images with strong encryption (including, but not limited to 168-bit (3DES) data encryption feature sets) are subject to U.S. government export controls and have limited distribution. Strong encryption images to be installed outside the United States are likely to require an export license. Customer orders may be denied or subject to delay because of U.S. government regulations. When applicable, the purchaser/user must obtain local import and use authorizations for all encryption strengths. Please contact your sales representative or distributor for more information, or send an e-mail to export@cisco.com.

New and Changed Information

The following sections list the new hardware and software features supported by the Cisco MC3810 for Release 12.2(2) XA5.

New Hardware and Software Features in Cisco IOS Release 12.2(2) XA5

There are no new hardware and software features supported in Cisco IOS Release 12.2(2) XA5.

New Hardware and Software Features in Cisco IOS Release 12.2(2) XA4

There are no new hardware and software features supported in Cisco IOS Release 12.2(2) XA4.

New Hardware and Software Features in Cisco IOS Release 12.2(2) XA3

Cisco IOS Release 12.2(2) XA3 does not support the Cisco MC3810.

New Hardware and Software Features in Cisco IOS Release 12.2(2) XA2

Cisco IOS Release 12.2(2) XA2 does not support the Cisco MC3810.

New Hardware and Software Features in Cisco IOS Release 12.2(2) XA1

There are no new hardware and software features supported in Cisco IOS Release 12.2(2) XA1.

New Hardware Features in Cisco IOS Release 12.2(2) XA

There are no new hardware features supported in Cisco IOS Release 12.2(2) XA.

New Software Features in Cisco IOS Release 12.2(2) XA

The following new software features are supported by the Cisco MC3810 for Cisco IOS Release 12.2(2) XA:

Call Admission Control for H.323 VoIP Gateways

Before the call admission control feature, gateways did not have a mechanism to gracefully prevent calls from entering when certain resources were not available to process the call. This causes the new call to fail with unreported behavior, and could potentially cause the calls that are in progress to have quality related problems.

This feature set provides the ability to support resource-based call admission control processes. These resources include system resources such as CPU, memory, and call volume, and interface resources such as call volume.

If system resources are not available to admit the call, two kinds of actions are provided: system denial (which busyouts all of T1 or E1) or per call denial (which disconnects, hairpins, or plays a message or tone). If the interface-based resource is not available to admit the call, the call is dropped from the session protocol (such as H.323).

User Selected Threshold

This feature allows a user to configure call admission thresholds for local resources as well as memory and CPU resources. The list of local resources that are configured for call admission are described in the command description of "call threshold poll-interval."

With the call admission command, a user is allowed to configure two thresholds, high and low, for each resource. Call treatment is triggered when the current value of a resource goes beyond the configured high. The call treatment remains in effect until current resource value falls below the configured low. Having high and low thresholds prevents call admission flapping and provides hysteresis in call admission decision making.

With the call spike command, a user is allowed to configure the limit for incoming calls during a specified time period. A call spike is the term for when a large number of incoming calls arrive from the PSTN in a very short period of time (for example:100 incoming calls in 10 milliseconds).

Configurable Call Treatment

With the call treatment command, users are allowed to select how the call should be treated when local resources are not available to handle the call. For example, when the current resource value for any one of the configured triggers for call admission has reached beyond the configured threshold, the call treatment choices are as follows:

•TDM hairpinning — Hairpins the calls through the POTS dial peer.

•Reject — Disconnects the call.

•Play message or tone — Plays a configured message or tone to the user.

Resource Unavailable Signaling

This feature set supports the autobusyout feature where channels are busied out when local resources are not available to handle the call.

•PRI — Uses either service messages or disconnect with correct cause-code to signal "resources are unavailable."

PSTN Fallback

The goal of PSTN fallback is to monitor congestion in the IP network and either redirect calls to the PSTN or reject calls based on the network congestion. Calls can be re-routed to an alternate IP destination or to the PSTN if the IP network is found unsuitable for voice traffic at that time. The user defines the congestion thresholds based on the configured network. This functionality enables the service provider to give a reasonable guarantee about the quality of the conversation to their VoIP users at the time of call admission.

Note PSTN fallback does not provide assurances that a VoIP call that proceeds over the IP network is protected from the effects of congestion. This is the function of the other Quality of Service (QoS) mechanisms such as IP Real-Time Transport Protocol (RTP) priority or low latency queuing (LLQ).

PSTN fallback includes the following features:

•Offers flexibility to define the congestion thresholds based on the network.

–Defines a threshold based on Calculated Planning Impairment Factor (ICPIF), which is derived as part of International Telecommunication Union (ITU) G.113.

–Defines a threshold based solely on packet delay and loss measurements.

•Uses Response Time Reporter (RTR) probes to provide packet delay, jitter, and loss information for the relevant IP addresses. Based on the packet loss, delay, and jitter encountered by these probes, an ICPIF or delay and loss values are calculated.

•Is supported by calls of any codec. Only G.729 and G.711 have accurately simulated probes. Calls of all other codecs are emulated by a G.711 probe.

Important Notes

Changes to output attenuation Command

In Cisco IOS Release 12.2(2), the range of the output attenuation command for voice ports has changed from 0-14 to -6-14.

MIBs

To obtain lists of supported MIBs by platform and Cisco IOS release, and to download MIB modules, go to the Cisco MIB website on Cisco.com at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.

Deprecated and Replacement MIBs

Old Cisco MIBs will be replaced in a future release. Currently, OLD-CISCO-* MIBs are being converted into more scalable MIBs without affecting existing Cisco IOS products or network management system (NMS) applications. You can update from deprecated MIBs to the replacement MIBs as shown in Table 4.

Table 4 Deprecated and Replacement MIBs

Deprecated MIB

Replacement

OLD-CISCO-APPLETALK-MIB

RFC1243-MIB

OLD-CISCO-CHASSIS-MIB

ENTITY-MIB

OLD-CISCO-CPUK-MIB

To be determined

OLD-CISCO-DECNET-MIB

To be determined

OLD-CISCO-ENV-MIB

CISCO-ENVMON-MIB

OLD-CISCO-FLASH-MIB

CISCO-FLASH-MIB

OLD-CISCO-INTERFACES-MIB

IF-MIB CISCO-QUEUE-MIB

OLD-CISCO-IP-MIB

To be determined

OLD-CISCO-MEMORY-MIB

CISCO-MEMORY-POOL-MIB

OLD-CISCO-NOVELL-MIB

NOVELL-IPX-MIB

OLD-CISCO-SYS-MIB

(Compilation of other OLD* MIBs)

OLD-CISCO-SYSTEM-MIB

CISCO-CONFIG-COPY-MIB

OLD-CISCO-TCP-MIB

CISCO-TCP-MIB

OLD-CISCO-TS-MIB

To be determined

OLD-CISCO-VINES-MIB

CISCO-VINES-MIB

OLD-CISCO-XNS-MIB

To be determined

Note Note Cisco Management Information Base (MIB) User Quick Reference is no longer published. If you have an account with CCO, you can find the current list of MIBs supported by Cisco. To reach the Cisco Network Management Toolkit, go to CCO, press Login, and click to Software Center: Network Mgmt Products: Cisco Network Management Toolkit: Cisco MIB.

Caveats for Cisco IOS Release 12.2 XA

Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most serious caveats; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats, and only select severity 3 caveats are included in the caveats document.

For information on caveats in Cisco IOS Release 12.2, see Caveats for Cisco IOS Release 12.2.

For information on caveats in Cisco IOS Release 12.2 T, see Caveats for Cisco IOS Release 12.2 T, which lists severity 1 and 2 caveats and select severity 3 caveats and is located on Cisco.com and the Documentation CD-ROM.

This section contains only open and resolved caveats for the current Cisco IOS maintenance release.

To access this location, you must have an account on Cisco.com. If you have forgotten or lost your account information, e-mail the Contact Database Administration group at cdbadmin@cisco.com. If you do not have an account on Cisco.com, go to http://www.cisco.com/register and follow the directions to set up an account.

Note If you have an account with Cisco.com, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, log in to Cisco.com and click Service and Support: Technical Assistance Center: Select & Download Software: Jump to a software resource: Software Bug Toolkit/Bug Watcher. Another option is to go to http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl.

Open Caveats—Cisco IOS Release12.2(2)XA5

There are no open caveats specific to Cisco IOS Release 12.2(2)XA5 that require documentation in the release notes.

Resolved Caveats—Cisco IOS Release12.2(2)XA5

All the caveats listed in Table 5 are resolved in Cisco IOS Release 12.2(2)XA5. This section describes only severity 1 and 2 caveats and select severity 3 caveats.

•SNMP

Table 5 Resolved Caveats for Release 12.2(2) XA5

Caveat ID Number

Description

CSCdw65903

An error can occur with management protocol processing. Please use the following URL for further information:

http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCdw65903

Open Caveats—Cisco IOS Release 12.2(2) XA4

All the caveats listed in Table 6 are resolved in Cisco IOS Release 12.2(2) XA4. This table lists only severity 1 and 2 caveats and select severity 3 caveats.

Table 6 Open Caveats for Release 12.2(2) XA4

Caveat ID Number

Description

CSCdu20772

Q.SIG for BRI and PRI on Cisco 2600 series and Cisco 3600 series routers: atm_frf11_send_sub_channel failed for TCCS over ATM

Resolved Caveats—Cisco IOS Release 12.2(2) XA4

All the caveats listed in Table 7 are resolved in Cisco IOS Release 12.2(2) XA4. This table lists only severity 1 and 2 caveats and select severity 3 caveats.

Table 7 Resolved Caveats for Release 12.2(2) XA4

Caveat ID Number

Description

CSCdv39711

Outbound modem calls fail with %CSM-1-NO_VDEV: No modems associated:

CSCdu06427

Cleanup fix for CSCdt11503

CSCdv56410

Incorrect DiscwithPI handling causes memory leak and crash

CSCdv65099

OLI-SIP:5400 platform fails to pass valid FG-D oli information

CSCdu81936

Received gratuitous ARP overwrites interface MAC address in ARP tbl

CSCdv42346

All DSLs except primary advertised as OOS in GSM after RLM reinit

CSCdv43578

SIP: Incorrect Timestamps in SIP msgs

CSCdv48261

Improvements to dynamic acls for ios fw

CSCdu76530

Reload of Customer router causes 3810 ATM PVC to go down

Open and Resolved Caveats—Cisco IOS Release 12.2(2) XA3

Cisco IOS Release 12.2(2) XA3 does not support the Cisco MC3810.

Open and Resolved Caveats—Cisco IOS Release 12.2(2) XA2

Cisco IOS Release 12.2(2) XA2 does not support the Cisco MC3810.

Open Caveats—Cisco IOS Release 12.2(2) XA1

All the caveats listed in Table 8 are open in Cisco IOS Release 12.2(2) XA1. This table lists only severity 1 and 2 caveats and select severity 3 caveats.

Table 8 Open Caveats for Cisco IOS Release 12.2(2)XA1

Caveat ID Number

Description

CSCdu20772

atm_frf11_send_sub_channel failed for TCCS over ATM

CSCdu34365

Router crashed when tested with dsp firmware 3.6.8

CSCdu44402

ISDN holding CCBs and call confirm err after interface shut/noshut

Resolved Caveats—Cisco IOS Release 12.2(2) XA1

All the caveats listed in Table 9 are resolved in Cisco IOS Release 12.2(2) XA1. This table lists only severity 1 and 2 caveats and select severity 3 caveats.

Table 9 Resolved Caveats for Cisco IOS Release 12.2(2)XA1

Caveat ID Number

Description

CSCdu46942

NU tone is not heard on ivr calls

CSCdt59455

vty-async virtual-template doesn't work with no peer default ip addr

CSCuk21553

telnet client fails to perform DNS lookup of hostname

CSCdu70661

all channels except 24th channel stay busied out after configuration

CSCdu08214

Calltracker MIB returns NULL for userid when DNIS/ANI is not present

CSCdt93862

Access level issue while using Web interface

CSCdu62721

Candidate fails to bring up B-channels (not du42219)

CSCdu59975

Glare Conditions are not detected in vtsp

CSCdu57066

CONN_LOST event needs to be handled in ACC_FASTSTART_PROGRESS state

CSCdu56186

H323 GW:RSVP and Signal only call cleared by TGW after ACF received

CSCdu82224

V120 calls were mis-identified as PIAFS calls

CSCdu87080

Attach domain name to TGCP

CSCdv01493

NAS Send MLP bundle ID for non-MLP VPDN call.

CSCdu09342

ISDN network-side continuously sends RESTART after user-side reloads

CSCdu30345

DSP stopped collection digits - phone # with 0 length

CSCdu79506

Not able to process Piggyback message when running MGCP/NCS 1.0

CSCdu65104

MC3810 crashes @ m860_interrupt

Open Caveats—Cisco IOS Release 12.2(2) XA

All the caveats listed in Table 10 are open in Cisco IOS Release 12.2(2) XA. This table lists only severity 1 and 2 caveats and select severity 3 caveats.

Table 10 Open Caveats for Cisco IOS Release 12.2(2)XA

Caveat ID Number

Description

CSCdu343

Router crashed when tested with dsp firmware 3.6.8.

CSCdu207

atm_frf11_send_sub_channel failed for TCCS over AT.

Resolved Caveats—Cisco IOS Release 12.2(2) XA

There are no resolved caveats specific to Cisco IOS Release 12.2(2) XA that require documentation in the release notes.

Related Documentation

The following sections describe the documentation available for the Cisco MC3810. These documents consist of hardware and software installation guides, Cisco IOS configuration guides and command references, system error messages, feature modules, and other documents.

Documentation is available as printed manuals or electronic documents, except for feature modules, which are available online on Cisco.com and the Documentation CD-ROM.

As a supplement to the caveats listed in Caveats for Cisco IOS Release 12.2 XA in these release notes, see Caveats for Cisco IOS Release 12.2 and Caveats for Cisco IOS Release 12.2 T, which contain caveats applicable to all platforms for all maintenance releases of Cisco IOS Release 12.2 and Cisco IOS Release 12.2 T.

Note If you have an account with Cisco.com, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II, log in to Cisco.com and click Service & Support: Technical Assistance Center: Select & Download Software: Jump to a software resource: Software Bug Toolkit/Bug Watcher. Another option is to go to http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl.

Platform-Specific Documents

These documents are available for the Cisco MC3810 on Cisco.com and the Documentation CD-ROM:

Cisco IOS Software Documentation Set

The Cisco IOS software documentation set consists of the Cisco IOS configuration guides, Cisco IOS command references, and several other supporting documents. The Cisco IOS software documentation set is shipped with your order in electronic form on the Documentation CD-ROM—unless you specifically ordered the printed versions.

Documentation Modules

Each module in the Cisco IOS documentation set consists of one or more configuration guides and one or more corresponding command references. Chapters in a configuration guide describe protocols, configuration tasks, and Cisco IOS software functionality, and contain comprehensive configuration examples. Chapters in a command reference provide complete command syntax information. Use each configuration guide with its corresponding command reference.

The Cisco IOS software documentation set is available on Cisco.com and on the Documentation CD-ROM.

Release 12.2 Documentation Set

Table 11 lists the contents of the Cisco IOS Release 12.2 software documentation set, which is available in both electronic and printed form.

Note You can find the most current Cisco IOS documentation on Cisco.com and the Documentation CD-ROM. These electronic documents may contain updates and modifications made after the hard-copy documents were printed.

World Wide Web

Documentation CD-ROM

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•Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, in North America, by calling 800 553-NETS(6387).

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Obtaining Technical Assistance

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Contacting TAC by Telephone

If you have a priority level 1 (P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to the following website: